#!/usr/bin/bash -E

## CONSTANTS

MAIN_TAR_GZ_URL="https://git.artcode.re/miaou/miaou-bash/archive/main.tar.gz"

## FUNCTIONS

function bootstrap {
  cd "$(mktemp -d)" || exit 3
  curl -s -O $MAIN_TAR_GZ_URL
  tar -xzf main.tar.gz --directory "$(dirname $MIAOU_BASH_DIR)"
}

function assert_supported_distro {
  grep -E '^ID=debian|^ID_LIKE=debian' /etc/os-release ||
    grep -E '^ID=arch|^ID_LIKE=arch' /etc/os-release
}

## MAIN

set -Eeuo pipefail

! assert_supported_distro && echo 'unsupported distro: debian-like OR arch-like expected' && exit 2
deployment_type_adjective="${1:-installed}"
[[ ! -v MIAOU_BASH_DIR ]] && MIAOU_BASH_DIR=/opt/miaou-bash && export MIAOU_BASH_DIR

if [[ "$UID" -ne 0 ]]; then
  sudo -vp 'root privilege required: '
  echo curl -s https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install2.sh | sudo bash -E
  curl -s https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install2.sh | sudo bash
  exec bash -l
else
  if [[ -d "$MIAOU_BASH_DIR" && -L /etc/inputrc && "$(readlink /etc/inputrc)" == "$MIAOU_BASH_DIR"/etc/inputrc ]]; then
    . "$MIAOU_BASH_DIR"/bin/miaou-bash "$MIAOU_BASH_DIR/lib/self-upgrade.bash"
  else
    bootstrap
    . "$MIAOU_BASH_DIR"/bin/miaou-bash "$MIAOU_BASH_DIR/lib/initiate.bash"
    echo "miaou-bash successfully $deployment_type_adjective"
    exec bash -l
  fi
fi